<template>
    <view>
      <form id="payment-form" class="form">
        <view id="payment-element">
          <!--Stripe.js injects the Payment Element-->
        </view>
        <view id="submit" class="button">
          <view class="spinner hidden" id="spinner"></view>
          <span id="button-text" ref="payNow">Pay now</span>
        </view>
        <view id="payment-message" class="hidden"></view>
      </form>
    </view>
</template>

<script>
	//import Stripe from "https://js.stripe.com/v3/"
 // @import "https://js.stripe.com/v3/";
 // var Stripe = document.createElement('script');
 // 			Stripe.src = "https://js.stripe.com/v3/";
 // 			document.body.appendChild(Stripe);
 // var scripts = document.createElement('script');
 // scripts.src = "https://js.stripe.com/v3/";
 // document.body.appendChild(scripts);
  // const stripe = Stripe("pk_test_51L3yjJEWHO5x2V9imoNsOaIqvDVK8p2IQpW3TR8CnaDbXLdIEXMYGjE5W6eJ40ib0qbZvmaxAz1SftWsqI3RNhth00JVX6v71Q");
  // const stripe = Stripe("pk_test_TYooMQauvdEDq54NiTphI7jx");

  // The items the customer wants to buy
  const stripe = ''
  const items = [{ id: "xl-tshirt" }];

  let elements;
    export default {
        name: "stripe_payment",
		data() {
			return {
				clientSecret: ''
			}
		},
	  onLoad(options) {
		  // var script = document.createElement('script');
		  // script.src = "https://js.stripe.com/v3/";
		  // document.body.appendChild(script);
	  	this.clientSecret = options.clientSecret
	  },
      onReady(){
        this.initialize();
        this.checkStatus();
        // document.addEventListener('click',this.handleSubmit);
      },
      methods: {
        initialize(){
          // 此段注释代码为前端自己获取clientSecret值
          // const clientSecret = response.data.clientSecret;
          const clientSecret = this.clientSecret;
          const appearance = {
            theme: 'stripe',
          };
          elements = stripe.elements({ appearance, clientSecret });

          const paymentElement = elements.create("payment");
          paymentElement.mount("#payment-element");
        },
        async handleSubmit(e){
          e.preventDefault();
          this.setLoading(true);

          const { error } = await stripe.confirmPayment({
            elements,
            confirmParams: {
           // Make sure to change this to your payment completion page
              //return_url: process.env.BASE_URL + "/order/payment_result",
              return_url: window.location.origin + "/pages/order_pay_status/index",
            },
          });

		// This point will only be reached if there is an immediate error when
		// confirming the payment. Otherwise, your customer will be redirected to
		// your `return_url`. For some payment methods like iDEAL, your customer will
		// be redirected to an intermediate site first to authorize the payment, then
		// redirected to the `return_url`.
          if (error.type === "card_error" || error.type === "validation_error") {
            this.showMessage(error.message);
            this.setLoading(false);
          } else {
            this.showMessage("An unexpected error occured.");
          }

          this.setLoading(false);
        },
        async checkStatus(){
          const clientSecret = new URLSearchParams(window.location.search).get(
            "payment_intent_client_secret"
          );

          if (!clientSecret) {
            return;
          }

          const { paymentIntent } = await stripe.retrievePaymentIntent(clientSecret);

          switch (paymentIntent.status) {
            case "succeeded":
              this.showMessage("Payment succeeded!");
              break;
            case "processing":
              this.showMessage("Your payment is processing.");
              break;
            case "requires_payment_method":
              this.showMessage("Your payment was not successful, please try again.");
              break;
            default:
              this.showMessage("Something went wrong.");
              break;
          }
        },
        showMessage(messageText) {
          const messageContainer = document.querySelector("#payment-message");

          messageContainer.classList.remove("hidden");
          messageContainer.textContent = messageText;

          setTimeout(function () {
            messageContainer.classList.add("hidden");
            messageText.textContent = "";
          }, 4000);
        },
        setLoading(isLoading) {
          if (isLoading) {
            // Disable the button and show a spinner
            document.querySelector("#submit").disabled = true;
            document.querySelector("#spinner").classList.remove("hidden");
            document.querySelector("#button-text").classList.add("hidden");
          } else {
            document.querySelector("#submit").disabled = false;
            document.querySelector("#spinner").classList.add("hidden");
            document.querySelector("#button-text").classList.remove("hidden");
          }
        }
      }
    }
</script>

<style scoped lang="scss">
  body {
    // font-family: -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    display: flex;
    justify-content: center;
    align-content: center;
    height: 100vh;
    width: 100vw;
  }

  .form {
    width: 30vw;
    min-width: 500px;
    align-self: center;
    // box-shadow: 0px 0px 0px 0.5px rgba(50, 50, 93, 0.1),
    // 0px 2px 5px 0px rgba(50, 50, 93, 0.1), 0px 1px 1.5px 0px rgba(0, 0, 0, 0.07);
    border-radius: 7px;
    padding: 40px;
    margin: 225px auto;
  }

  .hidden {
    display: none;
  }

  #payment-message {
    color: rgb(105, 115, 134);
    font-size: 16px;
    line-height: 20px;
    padding-top: 12px;
    text-align: center;
  }

  #payment-element {
    margin-bottom: 24px;
  }

  /* Buttons and links */
  .button {
    background: #5469d4;
    font-family: Arial, sans-serif;
    color: #ffffff;
    border-radius: 4px;
    border: 0;
    padding: 12px 16px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: block;
    transition: all 0.2s ease;
    box-shadow: 0px 4px 5.5px 0px rgba(0, 0, 0, 0.07);
    width: 100%;
	text-align: center;
  }
  .button:hover {
    filter: contrast(115%);
  }
  .button:disabled {
    opacity: 0.5;
    cursor: default;
  }

  /* spinner/processing state, errors */
  .spinner,
  .spinner:before,
  .spinner:after {
    border-radius: 50%;
  }
  .spinner {
    color: #ffffff;
    font-size: 22px;
    text-indent: -99999px;
    margin: 0px auto;
    position: relative;
    width: 20px;
    height: 20px;
    box-shadow: inset 0 0 0 2px;
    -webkit-transform: translateZ(0);
    -ms-transform: translateZ(0);
    transform: translateZ(0);
  }
  .spinner:before,
  .spinner:after {
    position: absolute;
    content: "";
  }
  .spinner:before {
    width: 10.4px;
    height: 20.4px;
    background: #5469d4;
    border-radius: 20.4px 0 0 20.4px;
    top: -0.2px;
    left: -0.2px;
    -webkit-transform-origin: 10.4px 10.2px;
    transform-origin: 10.4px 10.2px;
    -webkit-animation: loading 2s infinite ease 1.5s;
    animation: loading 2s infinite ease 1.5s;
  }
  .spinner:after {
    width: 10.4px;
    height: 10.2px;
    background: #5469d4;
    border-radius: 0 10.2px 10.2px 0;
    top: -0.1px;
    left: 10.2px;
    -webkit-transform-origin: 0px 10.2px;
    transform-origin: 0px 10.2px;
    -webkit-animation: loading 2s infinite ease;
    animation: loading 2s infinite ease;
  }

  @-webkit-keyframes loading {
    0% {
      -webkit-transform: rotate(0deg);
      transform: rotate(0deg);
    }
    100% {
      -webkit-transform: rotate(360deg);
      transform: rotate(360deg);
    }
  }
  @keyframes loading {
    0% {
      -webkit-transform: rotate(0deg);
      transform: rotate(0deg);
    }
    100% {
      -webkit-transform: rotate(360deg);
      transform: rotate(360deg);
    }
  }

  @media only screen and (max-width: 600px) {
    form {
      width: 80vw;
      min-width: initial;
    }
  }
</style>